Support Python 3.9

CHANGELOG.md

@@ -11,6 +11,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - #1117: Add `sync` command for incremental loading of changed files in dev-mode modules. Detects modified files since last sync using SHA-1 hash and recompiles only what is stale. Supports `-delete` for processing removed files and `-test` for running changed test-phase unit tests.
 - #106: A module can now specify `<SystemRequirements SYSNamespace="true"/>` to prevent installation in non-%SYS namespaces.
 
+### Changed
+- Minimum supported Python version is now 3.9
+
 ### Fixed
 - Performance: Studio project creation on package load in dev mode is now 80% faster.
 - #994: Prevent crash in `zn` command when target namespace lacks IPM mappings

README.md

@@ -53,9 +53,9 @@ zpm: USER>
 
 | IRIS Version | Supported Python Versions |
 |--------------|---------------------------|
-| <2025.1      | 3.10 - 3.12               |
-| 2025.x       | 3.10 - 3.13               |
-| 2026.1+      | 3.10 - 3.14               |
+| <2025.1      | 3.9 - 3.12               |
+| 2025.x       | 3.9 - 3.13               |
+| 2026.1+      | 3.9 - 3.14               |
 
 ## Compatibility Notes
 

module.xml

@@ -43,9 +43,9 @@
                 ExtraPipFlags="--no-deps" />
             <PythonWheel Name="oras-0.1.30-py3-none-any.whl" ExtraPipFlags="--no-deps" />
             <PythonWheel Name="referencing-0.36.2-py3-none-any.whl" ExtraPipFlags="--no-deps" />
-            <PythonWheel Name="requests-2.33.0-py3-none-any.whl" ExtraPipFlags="--no-deps" />
+            <PythonWheel Name="requests-2.32.3-py3-none-any.whl" ExtraPipFlags="--no-deps" />
             <PythonWheel Name="typing_extensions-4.12.2-py3-none-any.whl" ExtraPipFlags="--no-deps" />
-            <PythonWheel Name="urllib3-2.7.0-py3-none-any.whl" ExtraPipFlags="--no-deps" />
+            <PythonWheel Name="urllib3-2.6.3-py3-none-any.whl" ExtraPipFlags="--no-deps" />
 
             <!-- Pure python implementation of rpds-py for offline installation or behind a
             firewall.

modules/python/rpds.py

@@ -1,10 +1,12 @@
-r"""Note: 
+r"""Note:
 This is a pure python implementation of the rpds-py library implemented using Rust here https://github.com/crate-py/rpds
 This should be placed somewhere under <iris-root>/lib/python, so that when users decide to install the real rpds-py library, it will override this one.
 """
 
-from collections.abc import Mapping, Iterable, Iterator, Set
-from typing import Any, Generic, TypeVar
+from __future__ import annotations
+
+from collections.abc import Iterator, Set
+from typing import Any, Generic, Iterable, Mapping, TypeVar
 
 _T = TypeVar("_T")
 _KT_co = TypeVar("_KT_co", covariant=True)

preload/cls/IPM/Installer.cls

@@ -154,7 +154,7 @@ ClassMethod InstallORASIfMissing()
             }
         }
     } else {
-        write !!,"WARNING: Flexible Python Runtime is not configured on this instance with a valid Python version (>=3.10). Not all IPM features will be available. If you wish to use ORAS registries, configure Flexible Python Runtime and then reinstall IPM.",!
+        write !!,"WARNING: Flexible Python Runtime is not configured on this instance with a valid Python version (>=3.9). Not all IPM features will be available. If you wish to use ORAS registries, configure Flexible Python Runtime and then reinstall IPM.",!
     }
     quit $$$OK
 }
@@ -170,8 +170,10 @@ ClassMethod ValidatePythonRuntime() As %Boolean
 {
     try {
         set version = ..PythonMajorMinorVersion()
-        if (+version < 3.10) {
-            write !!,"WARNING: Python version "_version_" is not supported. IPM requires Python 3.10 or higher.",!
+        set major = +$piece(version, ".", 1)
+        set minor = +$piece(version, ".", 2)
+        if (major < 3) || ((major = 3) && (minor < 9)) {
+            write !!,"WARNING: Python version "_version_" is not supported. IPM requires Python 3.9 or higher.",!
             return 0
         }
     } catch e {

src/inc/IPM/Common.inc

@@ -76,7 +76,7 @@ ROUTINE %IPM.Common [Type=INC]
 
 #; Separator for package version and platform version in OCI tag , e.g. "1.0.0__2024.1"
 #Define OrasTagPlatformSeparator "__"
-#Define OrasRequiresFlexiblePython "Flexible Python Runtime is not configured. You must configure it with Python 3.10+ and reinstall IPM to use ORAS registries."
+#Define OrasRequiresFlexiblePython "Flexible Python Runtime is not configured. You must configure it with Python 3.9+ and reinstall IPM to use ORAS registries."
 
 #; Place where Deployed.xml is stored
 #Define DeployedXMLDir "studio-project"

wheels/requirements.txt

@@ -9,8 +9,8 @@ jsonschema_specifications==2024.10.1
 jsonschema==4.23.0
 oras==0.1.30
 referencing==0.36.2
-requests==2.33.0
+requests==2.32.3
 typing_extensions==4.12.2
-urllib3==2.7.0
+urllib3==2.6.3
 # When https://github.com/pypa/pip/pull/10837 is merged, we should specify per-requirement `--no-deps` in requirements.txt directly,
 # so that dependabot etc. don't pick up vulnerabilities in `rpds-py`, which we implement ourselves.